a/c turned on car stalls out only in drive and reverse

[tustee]

L touring wagon, car starts easily but after about 5 mins. idle it begins to sputter, when the ac is on it begins to sputter till it stalls out, restarts easily but problem persists, but mostly when I put the car in drive, most days I cant even get it out the garage, ive changed fuel pump (twice) , 3 foreign used throttle body before ordering one line, went by 4 mechanics and did 3 diagnostics, changed distributer , alternator, maf sensor, temp.control sensor, ive noticed the ac compressor clutch sticking but b4 I change that id like to get a few opinions.

[japzor]

Everything including?

[VexXx Dogg]

What did you change?

[tustee]

I ve edited my old post with what ive changed
hope it pleases u 'mod'

[Hook]

Chill with the attitude. It's not to please me or anybody. It's better you ask and answer all the questions in one place instead of in three topics across two forums. I hope you find a solution.

[Hook]

L touring wagon, car starts easily but after about 5 mins. idle it begins to sputter, when the ac is on it begins to sputter till it stalls out, restarts easily but problem persists, but mostly when I put the car in drive, most days I cant even get it out the garage, ive changed
- fuel pump (twice)
- 3 foreign used throttle body before ordering one line
- went by 4 mechanics and did 3 diagnostics
- changed distributer
- alternator
- maf sensor
- temp.control sensor

ive noticed the ac compressor clutch sticking but b4 I change that id like to get a few opinions.

That's a very impressive parts list. However, I saw no mention of checking for vacuum leaks. swapping out the a/c idle-up module or cleaning/servicing/replacing the ISCV (Idle Speed Control Valve). These should be the very first things any mechanic or automotive a/c technician would check when dealing with this problem.
In park/neutral, you'd probably idle at around 800-900rpm, in drive, you'd probably come down to 700-800rpm. There's a reason why your idle doesn't come up to compensate for compressor load.

Never go back by those mechanics again. Ever.

What is your location? Maybe someone can recommend a more thorough mechanic close by.

[tustee]

im in trincity is it a vacuum leak pertaining to the ac but ive not been by any ac guys yet someone told me the step up on the ac may be bad ,and if ur referring to the iscv on the throttle body I did clean n service them on the foreign used ones but the new one came complete so I didnt think it was necessary to service that one. ur correct with the rpm except in drive it goes to about 500 n lower it fluctuates then stalls out. more help cud be usefull as in recommended mechanics...thnx

[Hook]

It sounds like a bad step-up module.

[tustee]

is there another name for the step up module cant seem to get any info on the net

[Hook]

Idle-up/step-up motor/solenoid/module. It bolts to the firewall, with two vacuum ports - one to TB one to IM.

First check that yours isn't simply adjusted poorly. There's a screw at the top with a hex head for (I think) a #4 or #3 allen key that adjusts how high it raises the idle speed. Tinker with that first, maybe spray with some electrical contact cleaner if you think it's just stuck.
If you feeling brave, connect the terminals to a 12V source and see if it opens and closes (blow through one end while clicking it).

[tustee]

the on the fire wall is different it has 1 port goin to manifold and it carries 3 wire then theres one on the engine with 2 port and 2 wires one port goes in the throttle body the other is a tubing that goes to a bottle like thing just above the fuel filter remember its a 5a engine